General Support Unit
Note: This mod was designed for Game Version 1.10.8. I have absolutely no idea if it will work for any later game version. If you are playing with the current game version and want to test it for me, let me know how it goes.
Basically I hate having to choose between Eight different support units when designing divisions. Tanks are supposed to have maintenance but not logisticians, and infantry should have engineers but not maintenance, genuinely I’m just sick of hearing it. So I made this mod out of spite.
I made a single support unit which combines the stats of all the other non-artillery support units into one. I even went through the trouble of making it so this single "General Support Unit" has stats of the fully upgraded support units. So for the cost of 30 support equipment 10 infantry equipment, you could just deploy a single GSU with each division, which has the stats of fully upgraded Engineers, Recon, Military Police, Maintenance, Hospitals, Logistics, and Signal Companies.
Tech which enables the GSU is added by decision. That decision won’t be taken by the in-game AI, and it only costs 10 Political Power. Also, because I am such a cool guy, the decision automatically auto-researches Support Equipment if you don’t already have it (who the heck are you playing as that doesn’t already have support equipment researched, weirdo?) and adds 300 Support Equipment, enough for about 10 divisions.
Update 1: Reduced GSU Training time from 120 to 90, and modified the decision so it also adds 100 infantry equipment.
Update 2: by popular-ish demand, a General Artillery Unit (G.A.U.) has also been added. It maintains all the stats of a regular artillery support unit, but requires Artillery, Anti-Air, and Anti-Tank, giving your divisions a little more oomph. This tech is also added by decision, also costing 10 political power. It also auto researches Great War Arty, and Interwar Anti-Air and Anti-Tank if you don’t already have them. It also adds enough of each artillery kind to deploy 10 divisions worth, which should set you up nicely.
I will consider adding other sub-units upon request. Keep in mind that my game mode is stuck in 1.10.8, so Flame Tanks and other such nonsense is not and will not be added to this mod unless you yourself monkey around in the code and add it (something which you are welcome to do, just give me some credit if you publish it).